"Missing"/Underrepresented Type Combinations

As most people know, after 9 whole generations and 30 years of games, we're down to only nine missing Type Combinations: Normal/Rock, Normal/Bug, Normal/Steel, Normal/Ice, Poison/Ice, Ground/Fairy, Rock/Ghost, Bug/Dragon and Fire/Fairy. Since every Gen has chipped at least a few off the list, I am optimistic that we'll see at least a few of them in Gen 10. Several of them definitely have great potential.

However, I wanna bring attention to the fact that many other type combinations are also still rare or only found in "special" kinds of Pokémon that I find unsatisfying as representation:

Dragon/Fairy is only found as a Mega Evolution

Fire/Ice is only found as a temporary form of a regional variant

Fire/Electric is only found as a Rotom Form

Psychic/Dragon, Ghost/Psychic, Steel/Fire and Fire/Water are exclusively found in Legendary/Mythical Pokemon

Fighting/Fairy and Fighting/Ground are only found in Paradox Pokemon

Normal/Ghost, Normal/Dark, Steel/Ice, Electro/Psychic and Ice/Fairy are only found as Regional Variants of Existing Pokemon

Steel/Water is ONLY found as a Starter Pokemon

Fighting/Rock, Fire/Fighting, Poison/Psychic, Poison/Fairy, Ground/Grass (only in Convergent Pokémon and Torterra), Rock/Electric and Grass/Electric are all found multiple times, but only in Pokémon of the former 7 categories I mentioned

Normal/Water, Normal/Fire, Normal/Electric, Normal/Poison, Fighting/Ice, Flying/Poison, Poison/Electric, Poison/Steel, Ground/Psychic, Ground/Ice, Rock/Dark, Rock/Dragon, Rock/Fairy, Bug/Ghost, Bug/Fairy, Bug/Ice, Bug/Dark, Ghost/Ice, Ghost/Electric, Steel/Dark, Grass/Ice, Electric/Dark and Dark/Fairy are all only found within a single evolutionary line, and some of them only in special ones like Fossils or Pikachu clones

Also, pure Flying monotype is still waiting for a "basic" fully evolved Pokemon

I hope that in Gen 10 attention is brought to some of these type combinations by giving them representation in regular basic Pokémon that aren't part of any special category :).

What type combinations would you love to see in Gen 10?